28984173562 has 12 divisors (see below), whose sum is σ = 46184125230. Its totient is φ = 13639610816.

The previous prime is 28984173473. The next prime is 28984173563. The reversal of 28984173562 is 26537148982.

It can be written as a sum of positive squares in 3 ways, for example, as 28358223201 + 625950361 = 168399^2 + 25019^2 .

It is not an unprimeable number, because it can be changed into a prime (28984173563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25072237 + ... + 25073392.

Almost surely, 2^28984173562 is an apocalyptic number.

28984173562 is a deficient number, since it is larger than the sum of its proper divisors (17199951668).

28984173562 is a wasteful number, since it uses less digits than its factorization.

28984173562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50145665 (or 50145648 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 28984173562 in words is "twenty-eight billion, nine hundred eighty-four million, one hundred seventy-three thousand, five hundred sixty-two".